JPH09189596A - Supplied article reverse discharging apparatus and discharge chute - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly and surely discharge adhesive or sticky articles from a container by providing a means for transferring the container in a standing state with an opening part directed upward, and a driving means which can change a transferring speed. SOLUTION: A lift conveyor 36 transfers four rows of cups 20 storing articles upward in a transferring direction. Each of the cups 20 aligned in four rows is reversed by an upper end part of the lift conveyor 36. In this reversed state, each cup 20 is dropped on a receiving frame 52, so that the article contained in each cup 20 is passed through the receiving frame 52 and discharged. The lift conveyor 36 of the apparatus is provided with an L-shaped metal fitting 34 and a servo motor 43. The L-shaped metal fitting 34 supports the aligned cups 20 and transfers upward to the upper end part of the conveyor while holding the cups in a standing state with opening parts directed upward. The servo motor 43 can change a transferring speed in a specific range when each cup 20 is reversed at the upper end part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention particularly raises an article holding means such as a cup containing articles having adhesiveness or adhesiveness such as cut vegetables, pickles, and muscles to a predetermined height. The present invention relates to a device for reversing and discharging an input product for reversing and then storing the product to be stored therein into, for example, a packaging bag, and a discharge chute that can be used for this device.

[0002]

2. Description of the Related Art A conventional device for reversing and discharging an input article is shown in FIG. 17, which conveys a container 1 containing an article 3 in a horizontal direction by a conveyor belt conveyor 2 during the conveyance. The container 1 of
Front locking bar 8a and rear locking bar 8b provided at the end of the
The container 1 can be discharged one by one from the terminal end of the conveyor belt conveyor 2 at a predetermined timing by performing a predetermined operation. Then, the discharged container 1 is
It falls while reversing into the upper opening of the guide cylinder 4, and is received in a reversed state by a stopper plate 12 provided below the lower opening of the guide cylinder 4. The stopper plate 12 is provided with a through hole 13, and the article 3 in the container 1 received by the stopper plate 12 has the through hole 13, a guide cylinder 17 provided below the through hole 13,
And it is thrown into the bag 19 through the inside of the chute 18. In the container 1 thus emptied, the guide cylinder 4 swings about the pivot 6 from the vertical position shown in FIG. 17 to the inclined position shown in FIG. 18 (direction C shown in FIG. 17). The sheet is discharged from the position on the stopper plate 12 onto the discharge plate 7 through the guide plate 14. The container 1 discharged onto the discharge conveyor 7 is conveyed by the discharge conveyor 7 in a state of being inverted to the subsequent stage. On the other hand, the guide cylinder 4 that has swung to discharge the container 1 returns to the original vertical position by swinging in the direction of D shown in FIG. 17, and receives the succeeding container 1 from the upper opening, and the same as above. The operation is repeated sequentially. In addition, 5 shown in FIG. 17 is a fluid cylinder. The fluid cylinder 5 is for swinging the guide cylinder 4 (see Japanese Utility Model Laid-Open No. 60-68008).

According to the reversing discharge device having the above structure, the article 3
The container 1 containing the container 1 is sent out from the terminal end of the conveyor belt conveyor 2, and the stopper plate 12
The article 3 in the container 1 can be discharged from the container 1 by the impact of falling on the stopper plate 12 freely. Thereby, even if the article 3 has adhesiveness or adhesiveness, the article 3 can be reliably discharged from the container 1. Therefore, the drop between the transport surface of the transport belt conveyor 2 and the upper surface of the stopper plate 12 is formed at a height corresponding to the degree of adhesiveness or adhesiveness of the article 3.

[0004]

However, in the above-mentioned conventional reversing and discharging device, when the adhesiveness or the adhesiveness of the article 3 is extremely large, the transport surface of the transport belt conveyor 2 and the upper surface of the stopper plate 12 are correspondingly changed. It is necessary to increase the height of the reversing and discharging device.If the height of the device is increased, the height of the reversing and discharging device becomes high, and it takes time to clean the device, which increases the cost of the device. The problem arises that the ceiling height of the place is restricted. Therefore, in the above-mentioned conventional reversal discharge device, when handling the article 3 having relatively large adhesiveness or adhesiveness, the article 3 in the container 1 cannot be reliably discharged due to the above-mentioned restriction of the apparatus. There is.

When the container 1 on the stopper plate 12 is discharged onto the discharge conveyor 7 in the reversing discharge device, the guide cylinder 4 is shown from the vertical position shown in FIG. Although it is being swung to the tilted position, in the state where the guide tube 4 is swung to the tilted position shown in FIG.
The container 1 in the guide cylinder 4 is also inclined in the same direction as the guide cylinder 4, and the container 1 is in this inclined state and the discharge conveyor 7
If the container 1 falls down, it may fall down on the discharge conveyor 7, and if the container 1 falls down, there is a problem that it is necessary to provide an upright device in order to automatically stand up the overturned container 1.

In the reversing and discharging device, the conveyor belt conveyor 2 conveys the containers 1 in a row along the conveying direction, and the containers 1 are put into the guide cylinder 4 one by one, and the articles are ejected from the container 1. Since 3 is discharged, there is a certain limit in increasing the number of times the article 3 is discharged from the container 1 per time. That is, there is a certain limit in increasing the respective transport speeds of the conveyor belt conveyor 2 and the discharge conveyor 7 and the swing speed of the guide cylinder 4.

Further, the articles 3 discharged from the container 1 are thrown into the bag 19 through the chute 18, but if the articles 3 are sticky or tacky (most articles differ in degree). That is, the article 3 adheres to the inner peripheral surface of the chute 18. In this way, when the article 3 adheres to the inner peripheral surface of the chute 18, the weight (or volume) of the article 3 put into each bag 19
However, there is a problem in that the variation of is large.

The present invention is particularly directed to a device for reversing and discharging an inserted article, which is capable of promptly and reliably discharging an article having adhesiveness or adhesiveness from a container in which the article is placed. An object of the present invention is to provide a discharge chute that can reliably discharge an article attached to the peripheral surface.

[0009]

According to the first aspect of the present invention, there is provided a device for reversing and discharging an input article, wherein a lift conveyor arranges article holding means for accommodating articles in a predetermined plurality of rows along the conveying direction and moves upward. Conveying, inverting each article holding means aligned in the plurality of rows at the upper end of the lift conveyor and dropping the article holding means in the inverted state onto the receiving frame, and being accommodated in each of the article holding means. In an inverted article discharging device for throwing an article passing through the inside of the receiving frame and discharging the article, the lift conveyor supports each article holding means arranged in the plurality of rows, and the opening of the article holding means is directed upward. A carrying means for carrying upwardly to the upper end portion in an upright state, and a driving means capable of changing the carrying speed when reversing the article holding means at the upper end portion within a predetermined range. It is characterized in that it has a structure in which Bei.

According to a second aspect of the present invention, there is provided a device for reversing and discharging an input article.
In the device for reversing and discharging the input articles of the first invention, a chute is provided between the upper end of the lift conveyor and the receiving frame, and the chute is arranged in a plurality of inverted rows received from the lift conveyor. The present invention is characterized in that the article holding means for dropping the article holding means onto the receiving frame is moved to a receiving state and each of the article holding means on the receiving frame is moved to a discharging state in which the article holding means is discharged laterally from above the receiving frame. Is.

According to a third aspect of the invention, there is provided a device for reversing and ejecting input articles,
The lift conveyor conveys the article holding means for accommodating articles upward in a state in which the openings of the article holding means are aligned in a predetermined plurality of rows along the conveyance direction,
At the upper end of the lift conveyor, each article holding means aligned in the plurality of rows is reversed, and the pieces are put into a chute that is fixedly provided, and the chute in the state where the article holding means is inverted is used. Let it pass and drop it on the receiving frame,
In a reversing and discharging device for an input article, which discharges the articles contained in the article holding means on the receiving frame by passing through the inside of the receiving frame, a discharging means is provided between the lower end of the chute and the receiving frame. The discharging means is provided in a connecting portion for connecting two movable pairs of the movable side of the parallel movement mechanism to each other, and the article holding means arranged in a plurality of rows at the upper end of the lift conveyor are provided on the receiving frame. A configuration for reciprocating between a receiving state of the dropable article holding means and a discharging state in which the article holding means on the receiving frame is engaged and the article holding means is moved to the side of the receiving frame and discharged. It is characterized by having done.

According to a fourth aspect of the present invention, there is provided a device for reversing and discharging input articles,
The lift conveyor conveys the article holding means for accommodating articles upward in a state in which the openings of the article holding means are aligned in a predetermined plurality of rows along the conveyance direction,
At the upper end of the lift conveyor, each article holding means aligned in the plurality of rows is reversed, and the pieces are put into a chute that is fixedly provided, and the chute in the state where the article holding means is inverted is used. Let it pass and drop it on the receiving frame,
In a reversing and discharging device for an input article, which discharges the articles contained in the article holding means on the receiving frame by passing through the inside of the receiving frame, a discharging means is provided between the lower end of the chute and the receiving frame. The discharging means is arranged in a plurality of rows at the upper end portion of the lift conveyor, and the article holding means can drop the article holding means from the receiving state in which the article holding means can receive the article holding means on the receiving frame. It is characterized in that it is configured to be moved by being guided by the guide means in a direction parallel to the upper surface of the receiving frame until it is discharged by moving it to the side.

The discharge chute of the fifth invention has an upper opening for inserting articles and a lower opening for discharging the inserted articles and having an opening area narrower than that of the upper opening. The tubular portion is formed by the first side wall and the second side wall, and the first side wall and the second side wall form a slide-down path of the article input from the upper opening, and the first and second side walls are formed. One or both of the side walls of the upper side opening are movable within a predetermined range in a direction in which the opening area of the upper opening is widened and in a direction in which the side wall is narrowed, and the side wall is moved to the upper side after the article is loaded into the upper opening. It is characterized in that it is configured to be driven by a drive unit in a direction of reducing the opening area of the opening.

The discharging chute of the sixth invention is the discharging chute of the fifth invention, wherein one of the first and second side walls is provided after the drive unit has loaded the article into the upper opening. Alternatively, both of them are driven in a direction in which the upper opening is narrowed, and the driving of the side wall is stopped so as to drop the article attached to the side wall.

According to the first and second aspects of the invention, the article holding means for holding the article is conveyed up to the upper end portion of the article holding means by the lift conveyor in an upright state with the opening of the article holding means facing upward and inverted. With the lever inverted (the opening of the article holding means faces downward), drop it on the receiving frame,
The article can be discharged from the article holding means by the impact of the article holding means falling on the receiving frame. Then, since it is possible to change the conveying speed when reversing the article holding means at the upper end of the lift conveyor within a predetermined range, if the property of the article is relatively adhesive or sticky, the By making the carrying speed relatively high at this time, the falling speed of the article holding means can be made faster, and thereby the impact when the article holding means falls on the receiving frame can be increased, and as a result, the adhesiveness It is possible to reliably discharge the article having the above items from the article discharging means. Then, for an article having a small adhesive property, the collision sound between the article holding means and the receiving frame can be reduced by relatively slowing the conveying speed at the time of reversing.

According to the first to fourth inventions,
The lift conveyor can convey the article holding means for accommodating the articles arranged in a predetermined plurality of rows along the conveying direction, and the article holding means arranged in the plurality of rows is inverted at the upper end of the lift conveyor. Since it can be made to drop on the receiving frame, the number of times the article is discharged from the article holding means per time can be increased in proportion to the number of rows of the article holding means.

According to the second invention, when the chute is in the receiving state, the article holding means can be received from the lift conveyor and guided and dropped onto the receiving frame, and the chute moves from the receiving state to the discharging state. By
Each article holding means on the receiving frame can be discharged laterally from above the receiving frame.

According to the third aspect of the invention, the article holding means for containing the article is conveyed to the upper end portion of the article holding means by the lift conveyer with the opening of the article holding means facing upward, and the article holding means is inverted. Thus, the article can be discharged from the article holding means by the impact of the article holding means dropping on the receiving frame after passing through the fixed chute. Then, when a plurality of article holding means fall on the receiving frame, the discharging means may move to the side of the receiving frame in a state of being engaged with the article holding means and discharge the article holding means to the side of the receiving frame. it can. Here, since the discharging means is provided in the connecting portion for connecting the two rotating pairs on the movable side of the parallel movement mechanism, the discharging means changes from the receiving state for receiving the article holding means to the discharging state for discharging the article holding means. In the moving section until moving, the angle formed by the discharging means and the upper surface of the receiving frame is always constant, which allows the article holding means to move in the inverted state which is substantially perpendicular to the upper surface of the receiving frame in the moving section. It can be discharged.

The difference between the fourth invention and the third invention is the path for moving the discharging means from the receiving state to the discharging state, and other than that, it operates similarly to the third invention.
That is, according to the fourth aspect of the invention, the discharging means is guided by the guiding means in the moving section from the receiving state where the plurality of article holding means can be received to the discharging state where the article holding means is discharged, and the upper surface of the receiving frame. It moves through a path parallel to the above, whereby the article holding means can be moved and discharged in the above-mentioned movement section in an inverted state which is substantially perpendicular to the upper surface of the receiving frame.

According to the fifth and sixth inventions, since the opening area of the upper opening is larger than that of the lower opening, the upper opening accepts articles falling over a relatively wide range. And the lower opening allows the received articles to be discharged within a relatively narrow range. Then, the article thrown into the upper opening may adhere to the inner side of the first or second side wall, but since the side wall can be driven in the direction in which the opening area of the upper opening is narrowed, this driving Makes it possible to make the sliding path of the side wall closer to the vertical direction than before this driving. As a result, the article attached to the side wall can be slid from the side wall and discharged.

According to the sixth aspect of the present invention, after the article is loaded into the upper opening, one or both of the first and second side walls are driven in a direction of narrowing the upper opening, and then the side wall. The driving of the side wall can be stopped so as to drop the article attached to the side wall. Thereby, the article attached to the side wall can be detached from the side wall by the inertial force of the article.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to the drawings. This embodiment shows an example in which the reversal discharging device and discharging chute (the inventions according to claims 1, 2, 5, and 6) of the present invention are applied to a combination scale. As shown in the plan view of FIG. 1, this combination scale has a loading stage 61 for an operator to load an article 21 into an empty cylindrical cup 20, and four weighing devices 62 (62-).
1, 62-2, 62-3, 62-4), a staying conveyor 63, a conveying conveyor 64, a discharging device (reversing discharging device for input articles according to the present invention) 65, and a transfer conveyor 66.
And And, these loading stages 61,
Four weighing devices 62 (62-1, 62-2, 62-3, 6
2-4), ..., and the like are configured so that a large number of cups (article holding means) 20 can be conveyed in a clockwise direction on this combination scale as shown by the arrows in FIG.

According to this combination weigher, as shown in FIG. 1, when these cups 20 are conveyed to the loading stage 61, they have adhesiveness or adhesiveness such as cut vegetables, pickles, and sashimi. Weigh articles 21 into each cup 2
The operator manually puts (fills) 0 into 0 to measure the weight of each of the articles 21 by the weighing machine 62, and the cups 20 containing the already-measured articles 21 are sequentially conveyed by the staying conveyor 63 and shown in FIG. Stay in the state shown. Next, the combination calculation means 10 from the top that stays on the stay conveyor 63.
Various combinations of the weight values of the articles 21 contained in the individual cups 20 are selected to select a combination of the weight values such that the total weight value is within a predetermined weight range, and the combination corresponds to the selected weight value. The cup 20 containing the article 21 is moved from the staying conveyor 63 onto the carrying conveyor 64 as shown in FIG. The conveyor 64 conveys the four cups 20 containing the articles 21 selected in these combinations to the discharge device 65 in the subsequent stage. The discharging device 65 conveys these four cups 20 to a discharging position (on the receiving frame 52) 88,
The article 21 is ejected from each cup 20 at the ejection position 88. As a result, the above-mentioned combined and weighed articles 21 are put into the packaging machine 89 and packaged. The emptied cup 20 is sent to the sending conveyor 92 in an inverted state, sent to the sending conveyor 92, passes through the cup inverting device 96, and is sent to the transfer conveyor 66 with its opening facing upward. To be Then, it is conveyed from the transfer conveyor 66 to the loading stage 61, and the article 21 is loaded on the loading stage 61, and the weighing and packaging are repeated. The cups 20 are formed to have the same weight.

Next, the discharging device (including the reversing discharging device for the input articles and the discharging chute) 65 will be described. now,
As shown in FIG. 2, when the four cups 20 containing the articles 21 are selected as a combination by the combination calculation by the combination calculation means, each cup 20 is transferred from the stay conveyor 63 to the transfer conveyor 64. The conveyor 64
It is locked by the stopper 22 provided at the end of the sheet and stays at a predetermined position on the conveyor 64. At that time, the four cup detection sensors (photosensors) 23-1 to 23-4 provided in the vicinity of the end portion of the transport conveyor 64 detect the four cups 20 selected in these combinations, and output a cup detection signal. When it is generated and this cup detection signal is input to a central processing unit (hereinafter referred to as CPU) not shown, the CPU
Of the article 2 selected for the next combination calculation by the stopper cylinder 113 in the extended state by operating the stopper cylinder 113 to the extended state (see FIGS. 1 and 4).
The subsequent cup 20 containing 1 can be stopped so as not to be conveyed into the discharge device 65.

As shown in FIG. 4, when the four cups 20 are stopped at the end of the conveyer conveyor 64, the conveyer conveyor 64 is driven, so that these four cups 20 are pressed and pressed. It is locked to 22. Then, in this pressed-down state, each cup 20 tries to protrude to the outside (right side or left side with respect to the transport direction of the transport conveyor 64) from the transport conveyor 64, but does not move to the pusher cylinder 24 side on the left side. The pusher bar 25 provided on the pusher cylinder 24 regulates the movement of the pusher cylinder 25 to the right, which is the opposite side of the pusher bar 25. The cup standby plate 26 shown in FIG. As shown in FIG. 5, the cup standby plate 26 is provided on the guide frame 27 of the conveyer 64, and the upper surface 28 of the cup standby plate 26 is provided.
Is a height H (= 2 to 3 mm) higher than the transfer surface (upper surface of the plastic chain) 29 of the transfer conveyor 64 shown in FIG.
It is formed so as to be higher than the cup standby plate 2 by the step H.
It can be regulated so that it does not protrude to the 6 side. The portion 31 of the cup standby plate 26 adjacent to the plastic chain 30 is bent with a bending radius R. By bending in this way, the cup 20 on the conveyor 64 is placed on the cup standby plate 26. It is possible to transfer easily. That is, as shown in FIG. 4, when the four cups 20 are pushed and pressed and are locked by the stopper 22, the pusher cylinder 24 is moved from the shortened state at a timing linked to the receiving signal from the packaging machine 89. The pusher cylinder 24 operates in the extended state, and the forced pushing force of the pusher cylinder 24 causes the cup standby plate 26 due to the weight of the cup 20.
These four cups 20 can be pushed out onto the cup stand-by plate 26 by overcoming the resistance to riding on the cup.

The cup stand-by plate 26 is provided with five side walls 32 as shown in FIGS. 4 and 5, and these five side walls 32 show the four cups 20 pushed out in FIG. You can guide to the position shown. Then, as shown in FIG. 4, a cup standby plate 26 that holds the four cups 20.
The cutouts 33 are provided at the corresponding four positions, and these cutouts 33 are for passing an L-shaped metal fitting 34 described later. A tip wall 35 is provided at the tip of the cup standby plate 26 in the cup pushing direction. This tip wall 3
5 and the side wall 32 are both formed at the same height. And each pitch of the five side walls 32 is 90.5 m
m, the thickness of the side wall 32 is 1.5 mm, the distance between the facing surfaces of the side wall 32 is 89 mm, and the diameter of the cup 20 is 88 mm.
mm, the gap between the cup 20 and the side wall 32 is 1 m
m. The tip wall 35 serves to stop each of the four cups 20 pushed out by the pusher bar 25 at a predetermined position shown in FIG. Thus, 4
By stopping the individual cups 20 at the predetermined positions shown in FIG. 4, the respective cups 20 can be stably raised when the four L-shaped metal fittings 34 are raised. This L
The letter-shaped metal fitting 34 is the transportation means according to claim 1.

Next, the lift conveyor 36 provided with the L-shaped metal fitting 34 will be described. The lift conveyor 36 is
As shown in the side view of FIG. 3, a drive sprocket 37 provided at the upper end and a driven sprocket 3 provided at the lower end.
8 and an intermediate sprocket 39 provided in the middle. The drive sprocket 37 is attached to a drive shaft 40, and the drive shaft 40 is connected to a rotary shaft 44 of a servomotor 43 with a reduction gear via a sprocket (not shown), a chain 41, and a sprocket 42. . Since the drive sprocket 37, the intermediate sprocket 39, and the driven sprocket 38 are looped by an annular chain 45 as shown in FIG. 3, the servo motor 43 is rotationally driven in a predetermined direction to move the chain 45 in the arrow direction. It can be driven in the direction of 46.

As shown in the front view of FIG. 6, the chain 45 is composed of two chains 45, 45.
The book chains 45 are connected to each other via a large number of bars 47. And these bars 47 are adjacent to each other.
One set is made up of books, and the three bars 4 that make up each set
As shown in FIG. 6, four L-shaped metal fittings 34 are provided on the 7, and these four L-shaped metal fittings 34 constitute one set. In addition, the left two of the four L-shaped metal fittings 34 are provided on the two bars 47 at the center and the lower side,
The two on the right side are provided on the two bars 47 on the center and on the upper side. A collar 48 is provided on each bar 47 so that each L-shaped metal fitting 34 does not move along the bar 47 (see FIG. 4). Then, as shown in FIG. 6, among the four L-shaped metal fittings 34 constituting one set, the two L-shaped metal fittings 34 on the right side and the two L-shaped metal fittings 34 on the left side are attached at different positions. When the articles 21 contained in each of the four cups that make up one set by being engaged with these four L-shaped metal fittings 34 are discharged to a predetermined discharge position 88, This is because the lower opening 50 of the discharge chute 49, which will be described later, can be quickly discharged without clogging.

As shown in FIG. 5, the L-shaped metal fitting 34
Each of the two bars 47 for controlling the posture of the
The upper bar 47 of the two bars 47 passes through the long hole 53.
The chains 45 are bent when the chains 45 pass through the sprockets 37, 38 and 39, but when the chains 45 are bent like this, they are adjacent to each other. This is because the interval between the bars 47 is narrowed, and thus the change in the interval can be absorbed by the movement of the bar 47 along the long hole 53. Reference numeral 54 shown in FIG. 7 is a guide plate for restricting the cup 20 being conveyed by the L-shaped metal fitting 34 so as not to move in the left and right directions in the figure, and 55 is the cup 2 being conveyed.
0 is a guide plate that regulates 0 so that it does not move downward. As shown in FIG. 3, these guide plates 54 and 55 are provided in a range from a position above the cup standby plate 26 to an upper end portion of the lift conveyor 36.

The servo motor 43 is driven intermittently,
If the number of times of combination calculation of the combination scale is, for example, 40 times / min, the time of one cycle of the lift conveyor 36 is 1.
It is 5 seconds, and the moving time of the L-shaped metal fitting 34 is 0.9 s.
ec, the stop time is 0.6 sec. FIG. 3 shows, in solid lines, the eight sets of L-shaped metal fittings 34 that are stopped. An L-shaped metal fitting 34 shown by a broken line at the upper end of the lift conveyor 36
Shows the state in which the cup 20 is loaded into the upper opening of the cup chute 56.

The reason why the servo motor 43 is used as a drive device for the lift conveyor 36 is firstly that the L-shaped metal fitting 34 slowly lifts each cup 20 standing by on the cup standby plate 26 shown in FIG. By cup 20
This is to provide a slow-up function for preventing a shock at the time of a collision between the and L-shaped metal fitting 34. Secondly, as shown in FIG. 3, when the L-shaped metal fitting 34 moves to the upper end portion of the lift conveyor 36, the cup 20 can be loaded into the cup chute 56 at an appropriate cup reversal loading speed. To do so. What is the proper cup inversion feeding speed?
When the cup 20 passes through the inside of the cup chute 56 and falls onto the receiving frame 52 in the inverted state, the article 21 in the cup 20 can be reliably discharged from the cup 20 due to the impact of the fall, It is a proper speed with relatively small impact, and this proper cup inversion feeding speed is
It varies depending on the degree of adhesion and tackiness of the article 21. Thirdly, as shown in FIG. 3, when the L-shaped metal fitting 34 stops near the upper end of the lift conveyor 36, the cup 20 engaging with the L-shaped metal fitting 34 pops out from the upper end of the lift conveyor 36. This is because the brake control has a slowdown function to prevent it.
And, fourthly, the lift conveyor 36 is adapted to correspond to the change of the processing capacity of the combination weigher (the number of times of combination calculation per hour).
This is because it is possible to easily change the cup transport speed, that is, the speed at each time point described above, to an appropriate speed.

As shown in FIG. 3, the cup chute 56 has a tubular shape and has an upper opening and a lower opening. The upper opening is formed so as to face the direction in which the cup 20 loaded from the upper end of the lift conveyor 36 can be received, and the lower opening receives the cup 20 loaded from the upper opening 52. It is formed so that it can be dropped upward. Further, as shown in FIG. 8B, three partition plates 57 are provided in the cup chute 56 in order to prevent the four cups 20 put into the cup chute 56 from colliding with each other. . That is, the inside of the cup chute 56 is shown in FIG.
As shown in (b), it is equally divided into four, and one cup 20 is placed in each divided area. That is, each of the four cups 20 is detached from each L-shaped metal fitting 34 by the centrifugal force at the upper end of the lift conveyor 36 and placed in each of the four openings formed in the upper opening of the cup chute 56. Each of the four cups 20 passes through the inside of the cup chute 56 and drops onto the receiving frame 52 in a state where the respective openings are directed downward (inverted state).

As shown in FIG. 3, the receiving frame 52 is provided on the pedestal 58 with its upper surface substantially horizontal. The receiving frame 52 is
As shown in FIG. 9, a flange portion 59, a buffer plate 60,
An article guide cylinder 74 and a cup guide cylinder 75 are provided. As shown in FIG. 9B, the flange portion 59 is a plate-like body having a substantially rectangular plan shape, and has two horizontally long through holes 7.
6 and 77 are formed. The upper through hole 76 shown in FIG. 9B is an article insertion port 76 into which the article 21 in the cup 20 is inserted, and the lower through hole 77 ejects the cup 20 from which the article 21 is taken out. It is the cup outlet 77. Four arc-shaped small projections 78 are provided on one inner edge of the article insertion port 76, and four arc-shaped small projections 78 are provided on the other inner edge.
Two large protrusions 79 are provided. Each of these protrusions 78, 7
9 can hold each of the four dropped cups 20 indicated by the alternate long and short dash line in FIG. And each cup 20
The article 21 therein is inserted into the article insertion port 76.

The buffer plate 60 is made of rubber and plays a role of cushioning the impact due to the collision with the opening edge of the cup 20 falling on the receiving frame 52. This buffer plate 60
9 is attached to a recess 80 formed along the inner peripheral edge of the article input port 76, and the inner edge of the through hole provided at the center has a shape (corresponding to the inner edge shape of the article input port 76). The four small protrusions 78 and the four large protrusions 79 are provided in a corresponding shape. This buffer plate 60
By softening the impact with the cup 20, chipping or cracking of the cup 20 can be prevented. Therefore, the cup 20 can be made of plastic, for example.
However, although the shock between the cup 20 and the receiving frame 52 is alleviated by the buffer plate 60, the articles 21 accommodated in the cup 20 are reliably discharged from the cup 20 by the alleviated shock.

The tubular portion provided on the lower surface of the portion of the flange portion 59 where the article input port 76 is provided is the article guide tube 74. The article 21 discharged from the cup 20 is thrown into the discharge chute 49 through the article guide cylinder 74. Further, the tubular portion provided on the lower surface of the portion of the flange portion 59 where the cup discharge port 77 is provided is the cup guide tube 75. The empty cup 20 from which the article 21 is discharged is
It is discharged to the delivery conveyor 92 through the cup guide cylinder 75.

A cover 81 is provided on the upper surface of the flange portion 59 of the receiving frame 52 shown in FIG. In this cover 81, the cup 20 in the inverted state is the cup chute 5.
The cup 20 bounces when it falls on the receiving frame 52 through 6 and the article 2 discharged from the cup 20 at this time
This is for preventing 1 from scattering on the upper surface of the receiving frame 52 and its vicinity.

Reference numeral 82 shown in FIG. 3 is a swing drive section. The swing drive unit 82 is an air cylinder, and is for swinging the cup chute 56. The cup chute 56, as shown in FIG.
3 is provided, and it is swingably supported around this pivot 83 between a cup receiving state shown by a solid line and a cup discharging state shown by a broken line. The tip portion 93 of the piston rod of the air cylinder, which is the swing drive portion 82, is rotatably connected to the side wall of the cup chute 56. The base end of the swing drive unit 82 is rotatably provided on the mount 58 via a pivot 94. With this configuration,
In the cup receiving state shown in FIG. 3 in which the swinging drive unit 82 is in the extended state, the cup 20 is received from the lift conveyor 36, the received cup 20 is dropped onto the receiving frame 52, and the article 21 in the cup 20 is discharged. It can be placed in 49. Then, when the swing drive portion 82 is driven to change from the extended state to the shortened state in FIG. 3, the cup chute 56 swings to the position indicated by the broken line in FIG. 3 (cup discharge state). At this time, the four cups 20 dropped on the receiving frame 52 can be moved on the receiving frame 52 while being dragged by the cup chute 56 and discharged into the cup guide tube 75. 4 discharged into this cup guide cylinder 75
The individual cups 20 are ejected onto the feed-out conveyor 92 in a reversed state (a state in which the opening faces downward).

As described above, since the cup 20 can be discharged into the cup guide cylinder 75 by swinging the cup chute 56, in order to discharge the cup 20, a cup other than the cup chute 56 can be discharged. There is no need to install a device. Therefore, the structure for discharging the cup chute 56 and the cup 20 is simple, which can contribute to cost reduction.

Next, the discharge chute 49 provided below the article guide cylinder 74 will be described. The discharge chute 49 has a flat funnel shape, as shown in FIGS. The upper opening 51 faces the lower opening of the article guide cylinder 74, and the lower opening 50 faces the article receiving cylinder 95 provided in the packaging machine 89 shown in FIG. is there. The discharge chute 49 includes the first side wall 96 and the second side wall 9
7, and first and second actuators (rotational drive unit)
Equipped with 98. As shown in FIG. 10, the first side wall 96 is formed in a fan shape, the right side edge is bent inward, and the second side wall 97 is formed in a fan shape similar to the first side wall 96. The left edge is bent inward.
A pivot 100 is provided on the outer surface of the lower end of each of the first and second side walls 96 and 97 via a support plate 99. As shown in FIG. 10B, these two pivots 100 are provided on the same line, and each pivot 100 is connected to the first and second actuators 98. Each actuator 98 is fixedly provided on the mount 58.

By driving the two actuators 98, the discharge chute 49 can swing the first and second side walls 96 and 97 in opposite directions about the pivot 100. By the discharge chute 4
The opening area of the upper opening 51 of 9 can be widened or narrowed. 10 (a), (b),
FIG. 10D is a diagram showing a state in which the opening area of the upper opening portion 51 of the discharge chute 49 is widened, and FIGS.
FIG. 8 is a diagram showing a state in which the opening area of the upper opening 51 of the discharge chute 49 is narrowed. The dimensions and angles of the respective parts of the discharge chute 49 are such that the length L ₁ of the upper opening 51 is 360 mm and the lower opening 50 is as shown in FIG. Length L ₂ is 80
mm, the height H is 400 mm, the inclination angle θ of the article sliding path is 70 °, and the width W in the depth direction is 90 mm in FIG. In FIG. 10 (c) showing a state in which narrowing the opening area of the upper opening 51, the length L ₁ of the upper opening 51 '90 mm, the length of the lower opening 50 L _2' is 9
It is 0 mm.

This combination weigher uses a cup 20 so that even an article 21 having a relatively large adhesiveness and adhesiveness can be weighed with high accuracy. Therefore, if the discharge chute 49 is provided, the article 21 may adhere to the inner surface, so it is preferable that the discharge chute 49 is not provided. However, the four cups 2 dropped on the receiving frame 52
In order to put the articles 21 discharged from 0 into the article receiving cylinder 95 provided in the packaging machine 89, it is necessary to provide a funnel-shaped discharge chute 49. The inclination angle θ of the article sliding path of the discharge chute 49 is preferably close to 90 ° in order to prevent the article 21 from adhering. However, when the inclination angle θ approaches 90 °, the discharge chute 49
Has a problem that the cost of the apparatus increases and the inclination angle θ cannot approach 90 °. Therefore, in order to prevent the articles 21 from adhering to the inner surface of the discharge chute 49 and to reduce the height H of the discharge chute 49, the discharge chute 4 is provided.
Invented 9.

According to this discharge chute 49, the four cups 20 in the inverted state fall on the receiving frame 52, and the articles 21 in each cup 20 are placed in the upper opening 51 of the discharge chute 49.
After being placed in the first and second actuators 9
8 and 98 are driven to swing the first and second side walls 96 and 97 in a direction in which the opening area of the upper opening 51 is narrowed. By this swinging, the sliding path of the first and second side walls 96, 97 can be made closer to the vertical direction than before the swinging,
As a result, the article 21 attached to the side walls 96, 97 can be slid from the side walls 96, 97 and discharged from the lower opening 50. Then, the first and second side walls 96,
As shown in FIG. 10 (c), the first and second actuators 98, 97 of the sliding path 97 are in a substantially vertical state.
The drive of 98 is suddenly stopped. As a result, the first and second
The article 21 still attached to the side walls 96, 97 of the respective side walls 96, 97 by the inertial force applied to the article 21.
It can be dropped from and discharged from the lower opening 50. As a result, the articles 21 put in through the upper opening 51 of the discharge chute 49 will not be fed to the first and second side walls 96, 9.
It is possible to contribute to the improvement of the weighing accuracy because it can be discharged from the lower opening portion 50 without remaining attached to the sheet 7. Then, as shown in FIG. 10A, the inclination angle θ of the sliding path (the bent portions of the first and second side walls 96 and 97) is 70 °, which is gentle, so that the discharge chute 49 is The height of the attached combination scale can be relatively low, which can reduce the cost of the combination scale.

The second embodiment will be described with reference to FIGS. 11 to 13. The combination weigher of this embodiment is the combination weigher of the first embodiment provided with a cup falling prevention device 112 shown in FIG. Other than this, since it is equivalent to the first embodiment, detailed description is omitted. As shown in FIG. 11, the cup fall prevention device 112 has a bearing portion 114 provided on the mount 58, and a shaft 115 is rotatably supported by the bearing portion 114. Then, the upper ends of four inverted L-shaped fall prevention links 116 are fixedly provided on the shaft 115 at substantially the same pitch as the pitch of the cup 20. Further, the lower end portion of the first link 117 is fixedly provided on the shaft 115,
The first link 117 and the cup chute 56 are connected via the second link 118. 118a, 118b
Is a connecting shaft. Then, as shown in FIG. 13B, the cup guide cylinder 75 has four fall prevention links 11
Four insertion holes 119 through which 6 can be inserted are provided.

According to the cup fall prevention device 112,
As shown in FIG. 11, when the cup chute 56 is in the cup receiving state, the four fall prevention links 116 are disengaged from the cup guide cylinder 75. Therefore, the four cups 20 placed in the cup guide cylinder 75 can be sequentially delivered to the subsequent stage by the delivery conveyor 92. Next, as shown in FIG. 12, when the cup chute 56 is in the cup discharging state, as shown in FIG. 13B, the four fall prevention links 116 are provided with four insertion holes provided in the cup guide cylinder 75. Since the four cups 20 on the receiving frame 52 are put into the four spaces partitioned by the four fall-prevention links 116, the four cups 119 are inserted into the four pieces of the cups 119. Each of the cups 20 can be held so as not to fall in the delivery direction of the delivery conveyor 92. As a result, the weighing by the combination scale can be sequentially continued without delay.

The third embodiment will be described with reference to FIG. The difference between the combination scale of the first embodiment and the combination scale of the third embodiment is that in the combination scale of the first embodiment,
As shown in FIG. 3, the cup 20 on the receiving frame 52 is discharged into the cup guide cylinder 75 by swinging the cup chute 56. However, in the combination weigher of the third embodiment, the cup chute 56 is mounted on a stand. A structure in which the cup 20 on the receiving frame 52 is fixedly mounted on the receiving frame 52, and the cup 20 on the receiving frame 52 is discharged into the cup guide tube 75 by the lateral feed cylinder (discharging means) 121 provided on the parallel movement mechanism 120. a step of conveying surface 123 of the feed conveyor 92 and 122 is where you h ₂ from h ₂ '. Other than this, since it is equivalent to the first embodiment, detailed description is omitted. The parallel movement mechanism 120 of the third embodiment is the parallel movement mechanism according to claim 3.

As shown in FIG. 14, the parallel movement mechanism 120 has two swing links 124 which are parallel to each other, and the upper ends of the swing links 124 are rotatable via a pivot 125. It is provided on the mount 58. The lower ends of the two swing links 124 are connected by a connecting link 126. Both ends of the connecting link 126 are connected to the connecting shaft 1.
Each swing link 124 is connected via 27 and 127. Then, as shown in FIG. 14, the two swing links 1
The swing link 124 on the right side of 24 is the drive cylinder 1
The piston 28 is connected to the tip end of the piston rod via a connecting shaft 129, and the base end of the drive cylinder 128 is connected to the mount 58 via a pivot 130. Two sets of the parallel motion mechanisms 120 configured as described above are provided at intervals from each other, and between the two connecting links 126 provided in the two sets of parallel motion mechanisms 120, the lateral movement shown in FIG. A feed tube 121 is provided.

As shown in FIG. 16 (a), the lateral feed tube 121 is a short tubular shape in which the planar shape is an oblong rectangular shape, and three partition plates 131 are provided inside each other at intervals. is there. As a result, the four cups 20 are divided into the four partition areas 132 by the partition plates 131,
··· Can be held within. A notch 134 is provided in the side wall 133 so that the lateral feed cylinder 121 and the cup 20 do not collide with each other when the lateral feed cylinder 121 moves from the position indicated by the alternate long and short dash line in FIG. 14 to the position indicated by the solid line. In addition, when the cup 20 is conveyed to the subsequent stage by the feed-out conveyor 92 in a state where the lateral feed cylinder 121 is swung to the position shown by the alternate long and short dash line in FIG.
The lower end edge 135 of the partition plate 131 is determined so that 1 and the cup 20 do not collide.

According to this parallel movement mechanism 120, FIG.
As shown in FIG. 5, when the drive cylinder 128 is in the extended state, the lateral feed cylinder 121 swings to the lower position of the cup chute 56, and the four cups 20 falling in the cup chute 56 are moved laterally. It is in a receiving state in which it can be received in the feed tube 121. Then, the drive cylinder 128
When the machine is driven from the extended state to the shortened state, the horizontal feed tube 1
The four cups 20 can be slid and moved on the receiving frame 52 while holding the four cups 20 in the 21, and the four cups 20 can be discharged onto the delivery conveyor 92. However, within the range in which the horizontal feed cylinder 121 swings from the cup receiving position (position indicated by the solid line) to the cup discharge position (position indicated by the alternate long and short dash line) by the parallel movement mechanism 120, the horizontal feed cylinder 1
The angle formed between the inner surface of the side wall 136 of 21 and the upper surface of the receiving frame 52 is constant 90 °, whereby the lateral feed tube 121
Each of the four cups 20 that move by contacting the inner surface of the side wall 136 can also be moved at an angle of 90 ° between the outer peripheral surface of each cup 20 and the upper surface of the receiving frame 52.
Therefore, each of the four cups 20 is transferred to the delivery conveyor 92.
It can be moved in the inverted state on the delivery conveyor 92 without being turned over in the delivery direction.

When the drive cylinder 128 is driven from this shortened state to the extended state, the lateral feed cylinder 121 is moved to the position shown in FIG.
It returns to the original position below the cup chute 56 shown in FIG.
Although the cup fall prevention device 112 is not shown in FIG. 14, the cup fall prevention device 112 described in the second embodiment is provided. However, the cup fall prevention device 11
The second second link 118 is connected to the swing link 124, and the four fall prevention links 116 are driven by the swing of the swing link 124 as in the second embodiment.

Further, the step h ₂ 'between the upper surface of the receiving frame 52 and the conveying surface 123 of the feed-out conveyor 92 is about 1/2 of the height of the cup 20, which is smaller than that of the first embodiment. Since the cup 20 is on the upper surface 12 of the receiving frame 52,
It is possible to reduce the recoil of the cup 20 when the cup 20 is dropped from the delivery conveyor 92 onto the transport surface 123 of the delivery conveyor 92. As a result, it is possible to reduce the possibility of the cup 20 falling on the delivery conveyor 92 from falling.

The fourth embodiment will be described with reference to FIG. The difference between the combination scale of the third embodiment and the combination scale of the fourth embodiment is that in the combination scale of the third embodiment,
As shown in FIG.
20 is used to move, while the fourth
In the embodiment, the lateral feed cylinder 121 is configured to be guided and moved by the guide means 137. Since the other points are the same as those in the third embodiment, detailed description thereof will be omitted. The guiding means 137 is the guiding means described in claim 4.

The guide means 137, as shown in FIG.
It comprises a rail 138 fixedly provided on the frame 58, and a sliding portion (not shown) that slides along the rail 138. The rails 138 are parallel to each other with a space therebetween, and are also parallel to the upper surface 122 of the receiving frame 52.
It is composed of a book rail 138, and is arranged with the lateral feed cylinder 121 interposed therebetween. The sliding portions are placed on the respective rails 138 via rollers and are connected to the lateral feed cylinder 121. The lateral feed cylinder 121 is connected to the tip end portion of the piston rod of the drive cylinder 141 via a connecting shaft 139, and the base end portion of the drive cylinder 141 is connected to the mount 58 via a pivot shaft 140. .

According to this guide means 137, as shown in FIG. 15, when the drive cylinder 141 is in the extended state, the lateral feed cylinder 121 moves to the lower position of the cup chute 56 and falls inside the cup chute 56. The four cups 20 coming in are in a receiving state in which they can be received in the lateral feed cylinder 121. Then, when the drive cylinder 141 is driven to change from the extended state to the shortened state, the lateral feed tube 12
The four cups 20 can be discharged onto the feed-out conveyor 92 by sliding on the receiving frame 52 while moving the four cups 20 in the unit 1. However, within the range in which the horizontal feed cylinder 121 moves from the cup receiving position (position indicated by the solid line) to the cup discharge position (position indicated by the alternate long and short dash line) by the guide means 137, the horizontal feed cylinder 121 is moved.
The angle formed between the inner surface of the side wall 136 of the roller and the upper surface 122 of the receiving frame 52 is a constant 90 °.
Each of the four cups 20 that move by contacting the inner surface of the side wall 136 of No. 1 also has an outer peripheral surface of each cup 20 and an upper surface 12 of the receiving frame 52.
It can be moved by setting the angle formed with 2 to a constant 90 °. Moreover, the lateral feed cylinder 121 can be moved while maintaining a constant distance from the upper surface of the receiving frame 52. Therefore, each of the four cups 20 does not fall in the delivery direction on the delivery conveyor 92 and does not fall.
2 can be discharged on. And the drive cylinder 1
When 41 is driven from this shortened state to the extended state, the lateral feed cylinder 121 returns to the original position below the cup chute 56 shown in FIG.

FIG. 15 shows the cup fall prevention device 1.
Although not shown in FIG. 12, a device equivalent to the cup fall prevention device 112 described in the second embodiment is provided. However, the second link 118 of the cup fall prevention device 112 is
It is connected to the lateral feed barrel 121, and the four fall prevention links 116 are driven by the reciprocating movement of the lateral feed barrel 121 in the same manner as in the second embodiment.

Next, the loading stage 61, the weighing device 62, the staying conveyor 63, the pusher 84, the combination calculating means, the carrying conveyor 64, etc. provided in the combination weigher of the first to fourth embodiments will be described in detail.

The loading stage 61, as shown in FIG.
Four cups 20 are arranged in a row to form one row.
Fixed stand that can hold rows (cage-like support) 6
7 is provided. The cups 20 are attached to the fixing table 67 so that the cups 20 do not protrude outside the adjacent row or the loading stage 61.
Book guides 68 are provided parallel to the traveling direction 97 and spaced from each other. At the entrance of this loading stage 61,
The end portion 69 of the transfer conveyor 66 is connected. Four empty cups 20 are accumulated in the terminal portion 69, and a central processing unit (CPU) provided in this combination scale.
When a predetermined supply signal is output from (not shown), the empty cup pusher 70 composed of an air cylinder provided in the vicinity of the terminal end portion 69 extends, and the tip of the empty cup pusher 70 is extended. The pad 71 provided at the end can send the four empty cups 20 on the terminal end portion 69 to the inlet on the loading stage 61. In this way, the four cups 20 sent onto the loading stage 61 push the respective front cups 20 forward, and as a result,
The four weighing machines 62-1, 62-2, 62- corresponding to the four frontmost cups 20 on the loading stage 61, respectively.
3, 62-4, and 4 on the four weighing devices 62-1, 62-2, 62-3, 62-4.
The individual cups 20 can be moved onto the staying conveyor 63. After that, the empty cup pusher 70 is shortened to move the four subsequent cups 2 on the transfer conveyor 66.
0 can be stored in the terminal portion 69. A stopper 72 is provided at the entrance of the terminal portion 69. The stopper 72 is an air cylinder, and when the four cups 20 are accumulated in the terminal end portion 69 of the transfer conveyor 66, the stopper 72 closes (the expanded state shown in FIG. 1), and the subsequent cup 20 ends. It can be stopped so that it does not come into the portion 69, and when the cup 20 at the terminal end portion 69 is pushed out by the loading stage 61 and the empty cup pusher 70 performs a shortening operation, it opens (is in a shortened state). Cup 2
It serves to pass 0 through the terminal end 69. The article 21 is loaded (filled) into each cup 20 when the empty cup 20 is on the loading stage 61.

Each of the four weighing devices 62 shown in FIG. 1 has a weight detector such as a load cell, and the article 21 is loaded from the loading stage 61 onto the platform provided in each load cell. When the cup 20 is sent, the cup 2
0 and the total weight of the articles 21 placed in the cup 20 can be weighed. Then, an arithmetic control unit (not shown) provided in this combination scale subtracts the known weight value of the cups 20 (each cup 20 has the same weight) from the total weight value of the article 21. It can be obtained by calculating the weight. Then, the four cups 20 into which the weighed articles have been loaded are retained when the number of the cups 20 on the subsequent stage retention conveyor 63 becomes eight or less.
Transported to This is the length of the stagnation conveyor 63 capable of accumulating 12 cups 20, and the number of the cups 20 on the stagnation conveyor 63 is 8 in order to receive the four measured cups 20. This is because (= 12-4) or less is required.

The retention conveyor 63, as shown in FIG.
The base end portion is a linear conveyor arranged on the side of the four weighing devices 62, and the cup 2 discharged from each weighing device 62.
It is possible to receive 0 and convey it to the left in the figure.
Further, a stopper 73 is provided at the left end portion, and the cup 20 can be locked by this stopper 73. The staying conveyor 63 is provided with two annular plastic chains (top chains), and the conveying surface of the plastic chains that comes into contact with the cup 20 is formed of a plastic plate having low frictional resistance.

The first to tenth pushers 84-1 to 84-10 are provided above the staying conveyor 63 shown in FIG.
Is provided, and the pads 20-1 to 85-10 provided at the tip of the piston rod of each pusher can restrict the cup 20 on the retention conveyor 63 from protruding to the pusher 84 side. That is, the staying conveyor 63 is constantly driven to rotate by the motor, and when each cup 20 on the staying conveyor 63 is conveyed to the stopper 73 side and the leading cup 20 abuts on the stopper 73, the succeeding cups 20 are sequentially moved to each other. The cups that are in contact with each other are arranged in a line in a pressed state, and each cup 20 stops at that position. However, since the staying conveyor 63 is constantly driven and driven, the cups 20 arranged in a line on the staying conveyor 63 try to protrude to the left or right side in the traveling direction, but are provided on the staying conveyor 63. By the step H and the pads 85-1 to 85-10, the cup 20 can be regulated so as not to protrude to the outside of the staying conveyor 63. As shown in FIG. 1, the tenth pusher 8
A guide 112 is also provided in the subsequent stage of 4-10 to prevent the cup 20 from protruding.

The first to tenth pushers 84-1 to 8-8
4-10 is a means for taking out the desired cup 20 on the staying conveyor 63 to the side of the carrying conveyor 64. These first to tenth pushers 84-1 to 84-10
1 is composed of an air cylinder, and the pushers are arranged at intervals of the same length as the diameter of the cup 20. That is, as shown in FIG. 1, with the twelve cups 20 arranged in a line on the staying conveyor 63, the first to tenth pushers 84- 1-84-10
Is provided. The pads 85-1 to 85-10 provided on the pushers 84-1 to 84-10 have an L-shaped planar shape.
It is shaped like a letter. As shown in FIG. 2, the pad 85 is L-shaped because the second, fifth, eighth, and tenth pushers 84-2, 84-5, 84-8, 84-10 are With the extension operation, each pusher 84-2, 84-5,
This is because the cup 20 subsequent to each cup 20 taken out by 84-8 and 84-10 is locked by the locking plate 86 of the corresponding pad. As a result, when the pushers 84-2, 84-5, 84-8, 84-10 in the expanded state are in the shortened state, the pads 85-2, 85-5, 85-
8, 85-10 can smoothly retract and return to the shortened state shown in FIG. 1 with the subsequent cup 20 stopped at their respective locking positions.

Next, the procedure for the combination calculation means to perform a combination calculation by variously combining the respective weights of these weighed articles 21 and the articles 21 selected for the combination are stored on the stay conveyor 6.
A procedure of taking out the sheet from the sheet No. 3, moving it to the conveyer 64, and conveying it to the discharge device 65 will be described. Although not shown in the figure, the combination calculation means is stored in a calculation control unit (not shown) configured by a central processing unit (CPU) and a storage unit (not shown) connected to this calculation control unit. Is a means for performing a predetermined combination operation. That is, various weight values of the articles to be weighed 21 obtained by weighing with each weighing device 62 are variously combined, and the total weight value of the combinations is within a predetermined weight range set in advance, and a predetermined condition is set. Is a means for selecting an article that constitutes a group satisfying the above condition, for example, a group equal to or closest to the target weight value.

The combination calculation by the combination calculation means is started when the operator operates the setting display section 87 and the preset number of combination calculation start memories reaches K. The combination calculation start memory number is a condition for the combination calculation means to start the combination calculation, and this condition is the number of cups 20 stopped on the stay conveyor 63 (the weighing stored in the storage unit). Number of weight values for finished goods)
Is, for example, K = 9 or more. That is,
If the number of weight values stored in the storage unit is less than 9, even if a combination calculation is performed, it is unlikely to select a combination in which the total weight falls within the predetermined weight range. When the number becomes 9 or more and the possibility of selecting a combination becomes high, the combination calculation is performed. However, this combination calculation start memory number K can be set by the operator by operating the setting display section 87 according to the weighing accuracy of the combination weighing and the weighing speed. Then, when the number of the cups 20 stopped on the staying conveyor 63 becomes less than 9, the weigher 62 stores the weighed articles until the number of the cups 20 on the staying conveyor 63 becomes 9 or more. Four cups 20 are conveyed. Then, when the number of the cups 20 on the staying conveyor 63 becomes 9 or more, the conveyance from the measuring device 62 is automatically stopped.

The take-out means for taking out the cup 20 selected as the combination from the staying conveyor 63 and moving it to the carrying conveyor 64 is the first to tenth pushers 84.
-1 to 84-10. Therefore, these first to tenth
The pushers 84-1 to 84-10 can remove any one of the ten cups 20 from the top among the twelve cups 20 retained on the retention conveyor 63 shown in FIG. Since it is 20, the weight value to participate in the combination is also the weight value of the articles 21 put in these 10 cups 20. Therefore, the weight values of the articles 21 contained in the eleventh and twelfth cups 20 from the beginning and the cups 20 subsequent thereto are not allowed to participate in the combination. That is, in the transport surface of the staying conveyor 63 shown in FIG. 1, the section in which the tenth to the tenth cups 20 are placed serves as the staying means of the cups 20, and the eleventh cup from the top. Although it extends from the position where 20 is placed to the side of the rear weighing device 62, the section functions as a standby means of the cup 20. FIG.
In this state, the eleventh and twelfth cups 20 are stopped in this standby means.

Then, the cup 2 taken out by the first to tenth pushers 84-1 to 84-10 shown in FIG.
The transporting means for transporting 0 to a predetermined discharge position 88 includes a transporting conveyor 64 and a discharging device 65 shown in FIG.

Now, the product (weight value) is calculated by the combination calculation means.
As a predetermined combination of, for example, as shown in FIG. 2, a second article 21, a fifth article 21 and an eighth article 21
And the tenth article 21 is selected, the second, fifth, eighth, and tenth pushers 84-2, 84-5, 84-8, 84-10 are selected as shown in FIG. The cups 20 containing the second, fifth, eighth, and tenth articles 21 are pushed out from the staying conveyor 63 by being driven to extend and get over the upper surface 81 of the holding frame 79 which is a protrusion preventing means. Then, it is moved to a transport conveyor 64 provided adjacent to the staying conveyor 63. Then, the second, fifth, eighth, and tenth pushers 84-
2, 84-5, 84-8, 84-10 are driven to extend, as shown in FIG. 2, the pads 85-2, 85-5, 85-8, 85-10 provided on the pushers are The respective locking plates 86 can lock the succeeding cups 20 of the respective removed second, fifth, eighth, and tenth cups 20. This allows the second, fifth, eighth, and tenth pushers 84-2, 84-5, 84 in the extended state.
-8, 84-10, when driven in a shortened manner, each pad 85
The -2, 85-5, 85-8, and 85-10 can smoothly return to the original position shown in FIG. 1 without hooking the subsequent cups 20.

Then, the second, fifth, eighth, and tenth four cups 20 moved onto the conveyor 64.
Are transported by the transport conveyor 64 and discharged from the discharge device 6
5. The second conveyed to the discharge device 65,
Each of the fifth, eighth, and tenth cups 20 includes the article 2
1 is taken out, and the taken-out article 21 is packed by the packing machine 89. On the other hand, the second, fifth, eighth, and tenth
Pushers 84-2, 84-5, 84-8, 84-1
When 0 is shortened, the first, third, and
The six cups 20 for accommodating the fourth, sixth, seventh, and ninth articles 21 and the subsequent two cups 20 are conveyed by the stay conveyor 63 and moved forward. Also, 4
The four cups 20 containing the weighed articles are sequentially supplied to the staying conveyor 63 from the weighing machine 62 of the table. These four
The individual cups 20 and the eight cups 20 on the staying conveyor 63, that is, a total of twelve cups 20 containing the weighed articles, are conveyed to the top cup 2 as described above.
0 is locked by the stopper 73, and the top cup 2
0 and the subsequent cups 20 are stopped in a row on the retention conveyor 63 in a state of being pressed against each other. After that, the following combination calculation is performed.

However, when the number of articles (weight value) 21 selected by the combination calculation is 4, only eight cups 20 remain on the staying conveyor 63, and therefore the combination calculation start memory number K = 9. Less than one, and therefore the cup 2 into which the next weighed item has been loaded from the four weighing devices 62
The following combination calculation is not performed until 0 is discharged to the staying conveyor 63.

The transfer conveyor 64 is a plastic chain conveyor equivalent to the retention conveyor 63. A guide 90 is provided on the left side surface of the transfer conveyor 64. The guide 90 moves from the staying conveyor 63 to the transfer conveyor 6
This is for preventing the cup 20 extruded to 4 from falling from the conveyor 64. The carrying surface of the carrying conveyor 64 is arranged at substantially the same height as the carrying surface 82 of the staying conveyor 63. Further, as shown in FIG. 1, a stopper cylinder 113 equivalent to the stopper 72 is provided at the entrance of the discharge device 65 of the conveyor 64. The stopper cylinder 113 switches between the extended state and the shortened state at a predetermined timing, so that the cups 20 selected as a combination are sequentially ejected for each set.
Can be sent to 5. When the stopper cylinder 113 is in the extended state and the selected cup 20 is stopped on the transport conveyor 64, these cups 2
0 is regulated by guides 90 and the like from both sides so as not to protrude from the conveyor 64, so that the cups 20 can be aligned and stopped on the conveyor 64.

According to the combination scale of each of the above embodiments, FIG.
As shown in FIG. 6, a configuration in which the articles to be weighed are loaded into the cup 20 on the loading stage 61, selected by the combination calculation, and loaded into the packaging machine 89 until the articles are held by the same cup 20. Is. Therefore, the sticky or sticky article does not stick to the inside of the split chute or the collecting chute as in the conventional combination scale, and as a result, cut vegetables or pickles having sticky or sticky properties. It is possible to improve the weighing accuracy and the weighing speed of the combined weighing of articles such as the squirrel or the streak, as compared with the conventional case.

Moreover, since a large number of weighed articles can be stored on the staying conveyor 63 without transferring the articles put in the cup 20 to another hopper or the like, the articles can be stored in different hoppers. Since there is no change in weight due to the adhesion caused by the transfer to the same or the like, the weighing accuracy and the weighing speed of the combined weighing of articles having adhesiveness can be improved more than before. Since the cup 20 containing a large number of weighed articles can be stored on the staying conveyor (storing means and standby means) 63, the weighing device 62 can continuously perform the weighing. As a result, the operating efficiency of the weighing device 62 can be improved more than ever before.

However, in each of the above embodiments, the shape of the cup 20 is a short cylinder having a bottom, but it may be a shape other than this, for example, a polygonal cylinder having a bottom.

In each of the above embodiments, the first and second side walls 96 and 97 of the discharge chute 49 are driven to swing by the actuators 98 and 98. However, one of the side walls is swung by the actuator 98. It may be configured to be driven dynamically.

[0073]

According to the first and second aspects of the present invention, the conveying speed when the article holding means is reversed at the upper end of the lift conveyor can be changed within a predetermined range. The falling speed of the falling article holding means can be freely increased within a predetermined range. That is, the impact when the article holding unit falls on the receiving frame can be freely increased within a predetermined range. This makes it relatively adhesive,
Alternatively, the sticky article can be reliably discharged from the article holding means. Therefore, since it is not necessary to increase the drop between the upper end of the lift conveyor and the receiving frame in order to increase the falling speed of the article holding means, this reversal discharge device can be made compact, and the cost can be reduced and installed. There is an effect that the ceiling height of the place can be relaxed. Further, for an article having a small adhesiveness, there is an effect that the collision noise between the article holding means and the receiving frame can be reduced by relatively slowing the conveying speed at the time of reversing.

According to the first to fourth inventions,
Since the article holding means arranged in a plurality of rows can be inverted at the upper end of the lift conveyor and dropped onto the receiving frame, the number of times per hour the articles are discharged from the article holding means is determined by the row of the article holding means. The effect is that the number can be increased in proportion to the number. That is, the cost for doubling the processing capacity for discharging the article from the article holding means is relatively small, and the installation location of the device is relatively small.

According to the second aspect of the invention, the provision of the chute has an effect that the article holding means received from the lift conveyor can be guided and reliably dropped onto the receiving frame. By moving the chute from the receiving state to the discharging state, each article holding means on the receiving frame can be discharged sideways from the receiving frame, so that a device for discharging the article holding means needs to be provided separately from the chute. In addition, there is an effect that the structure of this reversal discharge device can be simplified.

According to the third aspect of the invention, since the discharging means is provided in the connecting portion for connecting the two rotating pairs on the movable side of the parallel movement mechanism, the discharging means receives the article holding means from the receiving state and receives the article. In the movement section until the holding means is discharged to the discharging state, the article holding means can be moved and discharged in the inverted state which is substantially perpendicular to the upper surface of the receiving frame. As a result, there is an effect that the article holding means on the receiving frame can be reliably moved and discharged in a state of being inverted to the side of the receiving frame without falling.

According to the fourth aspect of the invention, since the discharging means is configured to move in the direction parallel to the upper surface of the receiving frame, the discharging means moves from the receiving state for receiving the article holding means to the discharging state for discharging the article holding means. In the moving section up to, the article holding means can be moved and discharged in an inverted state which is substantially perpendicular to the upper surface of the receiving frame. Moreover, in the moving section, the contact portion between the discharging means and the article holding means can always be made constant, so that the possibility of tipping over when discharging the article holding means on the receiving frame is made smaller than in the third invention. The effect is that you can.

In each of the fifth and sixth aspects of the invention, the first aspect is to form a slide-down path of the article after the article is put into the upper opening.
One or both of the second side wall and the second side wall can be driven in a direction to reduce the opening area of the upper opening. By this drive, the sliding path of the side wall can be made closer to the vertical direction than before this drive, and thus the article attached to the side wall can be slid off from this side wall, so that the article thrown in through the upper opening can There is an effect that it can be discharged from the lower opening without staying adhered to. The fifth aspect of the invention is particularly effective for articles having relatively adhesive or tacky properties.

According to a sixth aspect of the invention, after the article is loaded into the upper opening, one or both of the first and second side walls are driven in a direction to narrow the upper opening, and then the side wall is moved. This is a configuration in which the driving of the side wall of the article is stopped so as to drop the attached article. Therefore, as in the fifth aspect of the invention, the side wall can be brought closer to the vertical direction by the above-mentioned drive, so that the article attached to the side wall can be slid down, and the inertia force applied to the article when the side wall is stopped. Also, the attached article can be dropped from the side wall. As described above, the sixth aspect of the invention has an effect that the article attached to the side wall can be more surely dropped off than the fifth aspect of the invention.

[Brief description of the drawings]

FIG. 1 is a plan view showing a combination weigher according to a first embodiment of the present invention.

FIG. 2 is a plan view showing a state in which a pusher of the combination weigher according to the first embodiment pushes out a cup for containing a selected article.

FIG. 3 is a side view of an ejection device provided in the combination weigher according to the first embodiment.

FIG. 4 shows the combination weigher according to the first embodiment of the present invention, taken along the line A- in FIG.
It is an enlarged plan view seen from the A direction.

FIG. 5 is an enlarged side view showing a state in which the lift conveyor lifts the cup in the combination weigher according to the first embodiment of the present invention.

FIG. 6 is an enlarged front view showing the cup being conveyed by the lift conveyor according to the first embodiment of the present invention.

FIG. 7 shows a combination weigher according to the first embodiment of the present invention as shown in FIG.
It is an enlarged plan view seen from the B direction.

8A is a side view of the cup chute of the same first embodiment, and FIG. 8B is a front view of the cup chute of FIG. 8A.

FIG. 9A is a side view of the receiving frame of the first embodiment,
9B is a plan view of the receiving frame of FIG. 9A, and FIG.
It is a front view of the receiving frame of (a).

10A is a front view showing an opened state of the discharge chute of the first embodiment, FIG. 10B is a side view of the discharge chute of FIG. 10A, and FIG. 10D is a front view showing the closed state of the discharge chute, FIG. 10D is a plan view of the discharge chute of FIG. 10A, and FIG. 10E is a plan view of the discharge chute of FIG.

FIG. 11 is an enlarged side view showing a non-operated state of the cup fall prevention device provided in the discharge device of the combination weigher according to the second embodiment of the present invention.

FIG. 12 is an enlarged side view showing an operating state of the cup fall prevention device provided in the discharge device of the combination weigher according to the second embodiment of the present invention.

FIG. 13 (a) is an enlarged plan view showing an operating state of the cup fall prevention device according to the second embodiment of the present invention, and FIG.
It is an enlarged front view showing the operating state of the cup fall prevention device of the embodiment.

FIG. 14 is an enlarged side view showing a parallel link mechanism provided in the discharging device of the combination weigher according to the third embodiment of the present invention.

FIG. 15 is an enlarged side view showing the guide means provided in the discharge device of the combination weigher according to the fourth embodiment of the present invention.

16A is a plan view of the lateral feed tube of the third embodiment, FIG. 16B is a front view of the lateral feed tube of FIG. 16A, and FIG.
16D is a left side view of the lateral feed cylinder of FIG. 16A, and FIG.
It is a right view of the horizontal feed cylinder of (a).

FIG. 17 is a perspective view showing a cup receiving state of a conventional inverted reversing and discharging device for input articles.

FIG. 18 is a perspective view showing a cup discharge state of a conventional input reversal discharge device for inserted articles.

[Explanation of symbols]

 20 cups 21 articles 34 L-shaped metal fittings 36 lift conveyor 43 servo motor 49 discharge chute 50 lower opening 51 upper opening 52 receiving frame 56 cup chute 61 loading stage 62-1 to 62-4 weighing machine 63 retention conveyor 64 transfer conveyor 65 discharge device 66 transfer conveyor 70 empty cup pusher 84-1 to 84-10 pusher 85-1 to 85-10 pad 96 first side wall 97 second side wall 120 parallel movement mechanism 121 lateral feed tube 137 guide means

Claims (6)

[Claims] 1. A lift conveyor arranges article holding means for accommodating articles in a plurality of predetermined rows along a conveyance direction and conveys the articles upward, and each of the plurality of rows is arranged at the upper end of the lift conveyor. Inverting the article holding means and dropping the article holding means in the inverted state on the receiving frame,
In a device for reversing and ejecting an article stored in each of the article holding means for passing through the inside of the receiving frame and ejecting the article, the lift conveyor supports each article holding means arranged in the plurality of rows. Within a predetermined range, the conveying means for conveying upwardly to the upper end portion in a standing state with the opening of the article holding means facing upward, and the conveying speed when reversing each of the article holding means at the upper end portion are within a predetermined range. A reversing and discharging device for an input article, comprising a changeable driving means. 2. The device for reversing and discharging an input article according to claim 1, wherein a chute is provided between an upper end of the lift conveyor and the receiving frame, and the chute is in a plurality of reversal states received from the lift conveyor. The article holding means arranged in a row is moved to a receiving state of the article holding means for dropping the article holding means onto the receiving frame and a discharging state of discharging the article holding means on the receiving frame from the receiving frame to the side. A device for reversing and discharging an input article, which is characterized in that: 3. A lift conveyor arranges the article holding means for accommodating articles in a predetermined plurality of rows along the conveying direction and conveys them upward with the opening of the article holding means facing upward. At the upper end of the lift conveyor, each article holding means aligned in the plurality of rows is reversed, and the pieces are put into a chute that is fixedly provided, and the chute in the state where the article holding means is inverted is used. In a device for reversing and discharging an input article, which allows the articles stored in the article holding means on the receiving frame to pass therethrough and drop onto the receiving frame, to discharge the articles, the lower end portion of the chute and the above-mentioned Discharging means is provided between the receiving frame and the receiving frame, and the discharging means is provided at a connecting portion that connects two movable pairs of the parallel movement mechanism to each other, and is arranged in a plurality of rows at the upper end of the lift conveyor. Each of the article holding means is in a received state of the article holding means that can drop onto the receiving frame, and engages with the article holding means on the receiving frame to move the article holding means to the side of the receiving frame and discharge the article. A reversing and discharging device for an input article, which is configured to reciprocate between a discharging state and a discharging state. 4. A lift conveyor arranges article holding means for accommodating articles in a predetermined plurality of rows along the conveyance direction and conveys the article holding means upward with the opening of the article holding means facing upward. At the upper end of the lift conveyor, each article holding means aligned in the plurality of rows is reversed, and the pieces are put into a chute that is fixedly provided, and the chute in the state where the article holding means is inverted is used. In a device for reversing and discharging an input article, which allows the articles stored in the article holding means on the receiving frame to pass therethrough and drop onto the receiving frame, to discharge the articles, the lower end portion of the chute and the above-mentioned A discharging means is provided between the receiving frame and the receiving means, and the discharging means arranges the article holding means arranged in a plurality of rows at the upper end of the lift conveyor so that the article holding means can drop onto the receiving frame. To a discharge state in which each article holding means on the receiving frame is moved to the side of the receiving frame and discharged, the guide means moves in a direction parallel to the upper surface of the receiving frame. Inverting and discharging device for input articles. 5. A first cylindrical portion having an upper opening into which articles are loaded and a lower opening having an opening area smaller than that of the upper openings and discharging the loaded articles. It is formed by a side wall and a second side wall, and the first side wall and the second side wall form a slide-down path of an article thrown in through the upper opening, and at least one of the first side wall and the second side wall. Or, both are movable within a predetermined range in a direction in which the opening area of the upper opening is widened and in a direction in which the opening area is narrowed, and the side wall narrows the opening area of the upper opening after an article is put into the upper opening. A discharge chute characterized by being driven in a direction by a driving unit. 6. The discharge chute according to claim 5, wherein the drive unit causes one or both of the first and second side walls to have the upper opening after the article is loaded into the upper opening. An ejecting chute characterized in that the driving of the side wall is stopped so that the article adhering to the side wall is dropped by driving in a direction of narrowing the portion.